Home / 28,043.51-42,093.32-20,155.28

Finding the Fourth Proportional to 28,043.51, 42,093.32 and 20,155.28

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Solution

The fourth proportional to 28,043.51, 42,093.32 and 20,155.28 is: 30,253.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,043.51 : 42,093.32 = 20,155.28 : x
  2. Step 2: Convert to fraction form
    28,043.51/42,093.32 = 20,155.28/x
  3. Step 3: Cross multiply
    28,043.51x = 42,093.32 × 20,155.28
  4. Step 4: Simplify right side
    28,043.51x = 848,402,339.49
  5. Step 5: Solve for x
    x = 848,402,339.49/28,043.51
  6. Step 6: Final answer
    x = 30,253.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.